--- title: "Clean Truck Check Testers in Corona, CA (18 listed)" description: "Find 18 CARB-credentialed Clean Truck Check testers in Corona, Riverside County: 17 offer mobile testing, 8 do smoke opacity tests. Phone numbers, services and…" url: "https://ctcfinder.com/testers/riverside-county/corona/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Corona, CA 18 testing businesses in Corona (Riverside County) are on CARB's public Clean Truck Check tester list (18 credentialed testers). 17 offer mobile testing, 8 do smoke opacity tests, 13 test motorhomes. > CTC Finder is an independent directory, not affiliated with CARB. Tester data: CARB Clean Truck Check public tester list, last checked November 1, 2026. Confirm services, hours and prices with the tester. ## Testers in Corona - **[A plus auto and truck repair inc](https://ctcfinder.com/tester/a-plus-auto-and-truck-repair-inc-corona/)** — 1359 W 6th St Suite D, Corona, CA 92882 — (949) 870-7444. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Angel Rangel](https://ctcfinder.com/tester/angel-rangel-corona/)** — Corona, CA 92881 — (714) 341-5493. Services: not listed. - **[Clean Truck Check by Bison](https://ctcfinder.com/tester/clean-truck-check-by-bison-corona/)** — 11079 Evergreen Loop, Corona, CA 92883 — (909) 717-3322. Services: mobile testing, OBD testing. - **[Clean Truck Check Express Mobile Service](https://ctcfinder.com/tester/clean-truck-check-express-mobile-service-corona/)** — 2536 Bulrush Cir, Corona, CA 92882 — (949) 331-2198. Services: mobile testing, OBD testing. - **[Daddy Earl's Auto Repair](https://ctcfinder.com/tester/daddy-earls-auto-repair-corona/)** — 21785 Temescal Canyon Rd, Corona, CA 92883 — (951) 805-9287. Services: mobile testing, OBD testing, motorhome testing. - **[Diesel Smog Check](https://ctcfinder.com/tester/diesel-smog-check-corona/)** — Corona, CA 92879 — (951) 953-1892. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Exhaust Emission Reduction Specialists (Eers)](https://ctcfinder.com/tester/exhaust-emission-reduction-specialists-eers-corona/)** — 301 Blaine St, Corona, CA 92879 — (951) 734-3400. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Godofredo Valencia](https://ctcfinder.com/tester/godofredo-valencia-corona/)** — Corona, CA 92878 — (951) 818-8605. Services: mobile testing, OBD testing. - **[HD Carb Check](https://ctcfinder.com/tester/hd-carb-check-corona/)** — 12495 Limonite Ave, Corona, CA 92882 — (909) 636-2389. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Hp clean truck check](https://ctcfinder.com/tester/hp-clean-truck-check-corona/)** — 450 S Main St, Corona, CA 92882 — (714) 397-8025. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Jawid Hussaini](https://ctcfinder.com/tester/jawid-hussaini-corona/)** — Corona, CA 92881 — (909) 450-1394. Services: mobile testing, OBD testing, motorhome testing. - **[n and a diesel truck and trailer repair, LLC](https://ctcfinder.com/tester/n-and-a-diesel-truck-and-trailer-repair-llc-corona/)** — 2574 Redrock Dr, Corona, CA 92882 — (951) 207-2913. Services: mobile testing, OBD testing, motorhome testing. - **[P&M Mobile Diesel Service](https://ctcfinder.com/tester/p-and-m-mobile-diesel-service-corona/)** — 420 McKinley St 111-399, Corona, CA 92879 — (909) 519-2612. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[PCM Services](https://ctcfinder.com/tester/pcm-services-corona/)** — 211 Granite St Suite J, Corona, CA 92879 — (714) 743-7000. Services: mobile testing, OBD testing, motorhome testing. - **[Sikteenth Diesel Repair & Diagnostics](https://ctcfinder.com/tester/sikteenth-diesel-repair-and-diagnostics-corona/)** — 19142 Consul Ave, Corona, CA 92881 — (213) 663-8429. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[SVT Fleet Solution](https://ctcfinder.com/tester/svt-fleet-solution-corona/)** — 509 Bateman Cir, Corona, CA 92878 — (562) 896-3429. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[T@T Auto Air](https://ctcfinder.com/tester/t-t-auto-air-corona/)** — 3001 Hampshire Cir, Corona, CA 92879 — (951) 833-6075. Services: mobile testing, OBD testing, motorhome testing. - **[Trevor Harrison](https://ctcfinder.com/tester/trevor-harrison-corona/)** — Corona, CA 92883 — (909) 202-9386. Services: mobile testing, OBD testing. ## More testers within 20 miles - **[American Trucking Compliance LLC](https://ctcfinder.com/tester/american-trucking-compliance-llc-norco/)** — 1546 Bodie Pl, Norco, CA 92860 — (619) 736-4099 — 6 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Commerce Truck & Equipment Sales LLC.](https://ctcfinder.com/tester/commerce-truck-and-equipment-sales-llc-norco/)** — 2231 Hamner Ave, Norco, CA 92860 — (714) 400-7579 — 6 mi. Services: OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Daniel Cleveland](https://ctcfinder.com/tester/daniel-cleveland-norco/)** — Norco, CA 92860 — (951) 675-2879 — 6 mi. Services: mobile testing, OBD testing. - **[Green Smog Check](https://ctcfinder.com/tester/green-smog-check-norco/)** — 2126 Hamner Ave, Norco, CA 92860 — (951) 272-3300 — 6 mi. Services: OBD testing. - **[Martin Alvarez](https://ctcfinder.com/tester/martin-alvarez-norco/)** — Norco, CA 92860 — (626) 993-5791 — 6 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Nicole Gosselin](https://ctcfinder.com/tester/nicole-gosselin-norco/)** — Norco, CA 92860 — (760) 954-1167 — 6 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Premier Fleet Services INC](https://ctcfinder.com/tester/premier-fleet-services-inc-norco/)** — 1452 Morab Way, Norco, CA 92860 — (909) 228-6225 — 6 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Redline Concrete Pumping](https://ctcfinder.com/tester/redline-concrete-pumping-norco/)** — Norco, CA 92860 — (949) 244-4496 — 6 mi. Services: mobile testing, OBD testing. - **[Adelinos Auto Clinic](https://ctcfinder.com/tester/adelinos-auto-clinic-riverside/)** — 3300 Harrison St, Riverside, CA 92503 — (951) 454-0635 — 6 mi. Services: mobile testing, OBD testing. - **[Antonio Beltran](https://ctcfinder.com/tester/antonio-beltran-riverside/)** — Riverside, CA 92503 — (760) 898-4694 — 6 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Carmen Sahagun](https://ctcfinder.com/tester/carmen-sahagun-riverside/)** — Riverside, CA 92503 — (661) 695-1084 — 6 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Connor concrete cutting](https://ctcfinder.com/tester/connor-concrete-cutting-riverside/)** — Riverside, CA 92503 — (951) 206-2314 — 6 mi. Services: mobile testing. ## Trucking in Corona Riverside County includes the western Inland Empire logistics corridor (Riverside, Jurupa Valley, Moreno Valley, Perris) and the Coachella Valley. The Inland Empire holds roughly a billion square feet of warehouse space (Pitzer College estimate), so local fleets and owner-operators run a high volume of tests. Mobile testers who visit distribution centers and truck yards are common here. ## Cost Typical published prices in California: OBD test $50–$135 per vehicle; smoke opacity test $190–$200. Prices are set by each tester. ## Frequently asked questions ### How many Clean Truck Check testers are in Corona? CTC Finder lists 18 testing businesses in Corona from CARB's public tester list (18 credentialed testers), last checked November 1, 2026. Listing on CARB's list is optional, so the real number can be higher. ### Is there mobile Clean Truck Check testing in Corona? Yes. 17 listed businesses in Corona offer mobile testing, which means the tester comes to your yard. Use the Mobile filter above to see them. ### How much does a Clean Truck Check test cost in Corona? Testers set their own prices. Published prices for an OBD test are usually $50–$135 per vehicle; smoke opacity tests for older trucks often cost more, and mobile testers may add a trip fee. See the [cost guide](https://ctcfinder.com/guide/cost/). ### How often does my truck need a Clean Truck Check test? Most trucks test twice a year, on a schedule tied to the DMV registration expiration date. CARB says OBD trucks move to four tests a year beginning October 2027. California-registered (non-commercial) motorhomes and agricultural vehicles test once a year. See the [deadline guide](https://ctcfinder.com/guide/deadlines-2026-2027/). ## Nearby cities - [Norco](https://ctcfinder.com/testers/riverside-county/norco/) — 8 listings, 6 mi - [Eastvale](https://ctcfinder.com/testers/riverside-county/eastvale/) — 8 listings, 6 mi - [Riverside](https://ctcfinder.com/testers/riverside-county/riverside/) — 48 listings, 11 mi - [Jurupa Valley](https://ctcfinder.com/testers/riverside-county/jurupa-valley/) — 18 listings, 12 mi - [Yorba Linda](https://ctcfinder.com/testers/orange-county/yorba-linda/) — 4 listings, 13 mi - [Chino](https://ctcfinder.com/testers/san-bernardino-county/chino/) — 9 listings, 13 mi - [Ontario](https://ctcfinder.com/testers/san-bernardino-county/ontario/) — 31 listings, 15 mi - [Lake Forest](https://ctcfinder.com/testers/orange-county/lake-forest/) — 3 listings, 16 mi - [Rancho Santa Margarita](https://ctcfinder.com/testers/orange-county/rancho-santa-margarita/) — 3 listings, 16 mi - [Orange](https://ctcfinder.com/testers/orange-county/orange/) — 14 listings, 16 mi